Agro-morphological variability and genetic diversity in linseed (Linum usitatissimum L.) germplasm accessions with emphasis on flowering and maturity time

Saroha, Ankit; Pal, Deepa; Kaur, Vikender; Kumar, Sandeep; Bartwal, Arti; Aravind, J.; Radhamani, J.; Rajkumar, S.; Kumar, Rajesh; Gomashe, S. S.; Sengupta, Abhishek; Wankhede, Dhammaprakash Pandhari

doi:10.1007/s10722-021-01231-3

Cited by 25 publications

(18 citation statements)

References 51 publications

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“…Interestingly, some other known flowering-related genes such as FRIGIDA-like protein, AGAMOUS-like , Protein ULTRAPETALA 1 , and Chromatin remodeling protein SHL were observed near the QTNs associated with DM. Since the flowering time and days to maturity show positive phenotypic correlation ( Saroha et al, 2022 ), it is possible that the QTLs also harbor underlying genes for both the traits.…”

Section: Discussionmentioning

confidence: 99%

“…Also, a gene, Lus10015710 (FT-interacting protein 1) , involved in long-day photoperiodism and positive regulation of flower development has been found near to QTN, Lu14_6293660 associated with PH, indicating a possible pleiotropic effect on both the traits. Interestingly, the two traits showed a positive correction in linseed, as taller plants showed relatively delayed maturity ( Saroha et al, 2022 ). It has been observed that the FT ortholog in tomato (SFT) can also target growth and termination of vegetative apical meristems.…”

Section: Discussionmentioning

confidence: 99%

“…A total of 220 diverse linseed germplasm accessions (53 exotic collections and 167 indigenous collections) from NGB, Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, were evaluated at New Delhi (28°38′53.7″N 77°09′05.4″E) for 2 years, 2017–18 (DL17-18) and 2018–19 (DL18-19), as reported earlier by our group ( Saroha et al, 2022 ). The same set was also evaluated in three more environments including 2019–20 at New Delhi (DL19-20) and at Akola (20°42′03.2″N 77°01′53.6″E) for 2 years, 2018–19 (AK18-19) and 2019–20 (AK19-20).…”

Section: Methodsmentioning

confidence: 99%

“…Linseed is a facultative long-day plant, and flowering initiation in short days is essential for the onset of the reproductive stage to facilitate early maturity ( Domantovich et al, 2012 ). There also exist genotypic differences for photoperiod response ( Zhang 2013 ; Sirohi and Wasnik 2018 ; Sun et al, 2019 ; Saroha et al, 2022 ). Genetic dissection of flowering time, maturity, and complex agro-morphological traits could enable tailoring locally adaptable high-yielding varieties in linseed.…”

Section: Introductionmentioning

confidence: 99%

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Identification of QTNs Associated With Flowering Time, Maturity, and Plant Height Traits in Linum usitatissimum L. Using Genome-Wide Association Study

et al. 2022

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Early flowering, maturity, and plant height are important traits for linseed to fit in rice fallows, for rainfed agriculture, and for economically viable cultivation. Here, Multi-Locus Genome-Wide Association Study (ML-GWAS) was undertaken in an association mapping panel of 131 accessions, genotyped using 68,925 SNPs identified by genotyping by sequencing approach. Phenotypic evaluation data of five environments comprising 3 years and two locations were used. GWAS was performed for three flowering time traits including days to 5%, 50%, and 95% flowering, days to maturity, and plant height by employing five ML-GWAS methods: FASTmrEMMA, FASTmrMLM, ISIS EM-BLASSO, mrMLM, and pLARmEB. A total of 335 unique QTNs have been identified for five traits across five environments. 109 QTNs were stable as observed in ≥2 methods and/or environments, explaining up to 36.6% phenotypic variance. For three flowering time traits, days to maturity, and plant height, 53, 30, and 27 stable QTNs, respectively, were identified. Candidate genes having roles in flower, pollen, embryo, seed and fruit development, and xylem/phloem histogenesis have been identified. Gene expression of candidate genes for flowering and plant height were studied using transcriptome of an early maturing variety Sharda (IC0523807). The present study unravels QTNs/candidate genes underlying complex flowering, days to maturity, and plant height traits in linseed.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Identification of QTNs Associated With Flowering Time, Maturity, and Plant Height Traits in Linum usitatissimum L. Using Genome-Wide Association Study

et al. 2022

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“…In the initial years of the century, many molecular markers such as rapid amplification of polymorphic DNA (RAPD), 10.3389/fpls.2022.931275 Frontiers in Plant Science 05 frontiersin.org amplified fragment length polymorphism (AFLP), inter-simple sequence repeat (ISSR), and expressed sequence tags-simple sequence repeats (EST-SSR) were used to assess the genetic diversity in flax (Oh et al, 2000;Fu et al, 2002aFu et al, ,b, 2003Green et al, 2008;Cloutier et al, 2009Cloutier et al, , 2011Cloutier et al, , 2012Rajwade et al, 2010;Uysal et al, 2010;Kaur et al, 2018;Saroha et al, 2022a). The substantial lead in the generation of genomic resources was made with the availability of whole genome sequence of flax (Wang et al, 2012).…”

Section: Genomicsmentioning

confidence: 99%

Integrated omics approaches for flax improvement under abiotic and biotic stress: Current status and future prospects

et al. 2022

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Flax (Linum usitatissimum L.) or linseed is one of the important industrial crops grown all over the world for seed oil and fiber. Besides oil and fiber, flax offers a wide range of nutritional and therapeutic applications as a feed and food source owing to high amount of α-linolenic acid (omega-3 fatty acid), lignans, protein, minerals, and vitamins. Periodic losses caused by unpredictable environmental stresses such as drought, heat, salinity-alkalinity, and diseases pose a threat to meet the rising market demand. Furthermore, these abiotic and biotic stressors have a negative impact on biological diversity and quality of oil/fiber. Therefore, understanding the interaction of genetic and environmental factors in stress tolerance mechanism and identification of underlying genes for economically important traits is critical for flax improvement and sustainability. In recent technological era, numerous omics techniques such as genomics, transcriptomics, metabolomics, proteomics, phenomics, and ionomics have evolved. The advancements in sequencing technologies accelerated development of genomic resources which facilitated finer genetic mapping, quantitative trait loci (QTL) mapping, genome-wide association studies (GWAS), and genomic selection in major cereal and oilseed crops including flax. Extensive studies in the area of genomics and transcriptomics have been conducted post flax genome sequencing. Interestingly, research has been focused more for abiotic stresses tolerance compared to disease resistance in flax through transcriptomics, while the other areas of omics such as metabolomics, proteomics, ionomics, and phenomics are in the initial stages in flax and several key questions remain unanswered. Little has been explored in the integration of omic-scale data to explain complex genetic, physiological and biochemical basis of stress tolerance in flax. In this review, the current status of various omics approaches for elucidation of molecular pathways underlying abiotic and biotic stress tolerance in flax have been presented and the importance of integrated omics technologies in future research and breeding have been emphasized to ensure sustainable yield in challenging environments.

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Morphological and molecular characterization of flax (Linum usitatissimum L.) accessions obtained from different locations in Turkey

Koçak

Kumlay

Alma

2023

Genet Resour Crop Evol

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Flax (Linum usitatissimum L.) is an important crop for source of with the different uses of oil and ber. In addition, ax, which has an important place in the world and our country, has a multi-purpose use area. The objectives of the current research were to assess genetic diversity and patterns of relationships among the relative cultivar/genotypes through morphological traits and microsatellite (SSR) markers. The present study evaluated genetic diversity and association patterns among 63 cultivar/genotypes through 19 morphological traits, oil yield (18.033%) and fatty acid compositions. The relative agromorphological traits as well as, assessed genetic diversity through 16 loci strong amplicons SSR markers. According to the ndings agronomic parameters; quality analyzes were performed to for promising varieties. The quality characteristics of the related ber varieties were determined with the help of Scanning Electron Microscopy (SEM) and strength devices. As a result; It has been observed that the Eckendor can be promising. Principal Component Analysis (PCA) (JAMOVI 2022) performed to relevant parameters. Additionally, UPGMA (Arithmetic Mean Unweighted Double Group Method) is an individual marker system used to create the dendrogram. The average Polymorphic Information Content (PIC) values were recorded as (0.689), while the least and largest loci with allele dimensions were Lu9 (2) and Lu19-Lua613(6) respectively. These ndings of the present study were supported by the results of the principal coordinate analysis. Morphological markers made use of in the study were found to be complementary to microsatellite-based markers in decoding, the genetic diversity and population structure of the ax germplasm.

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Agro-morphological variability and genetic diversity in linseed (Linum usitatissimum L.) germplasm accessions with emphasis on flowering and maturity time

Cited by 25 publications

References 51 publications

Identification of QTNs Associated With Flowering Time, Maturity, and Plant Height Traits in Linum usitatissimum L. Using Genome-Wide Association Study

Identification of QTNs Associated With Flowering Time, Maturity, and Plant Height Traits in Linum usitatissimum L. Using Genome-Wide Association Study

Integrated omics approaches for flax improvement under abiotic and biotic stress: Current status and future prospects

Morphological and molecular characterization of flax (Linum usitatissimum L.) accessions obtained from different locations in Turkey

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